Knowledge

Facts, science and history of optical illusions.
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Parallax Effect

How to create optical illusion photos (for social media)

Can animals see optical illusions? Hosico cat shows it with optical illusion rug

Animals and optical illusions

Great heights

Source/credit: Cemal Yıldırım

This is Gülek Castle in Turkey. Perspective is everything. Tourists love using Forced Perspective to make it look like the person is at great heights above the highway.

More optical illusions:

Ghost Cat

North Sentinel Tribesman

Parked too long?

Grate View of Central Park

Parquet Floor

Dock to the sky

Escher drawing IRL

Giant Party in the Skyline

This is the volcano Mount Etna in Sicily erupting. The bright lava against an almost invisible mountain looks like a Phoenix (or Mutalisk)

Phoenix rising

Nature

Dirt Wheels

Bicycles